SECM NSN difference

[leeh725]

Can someone tell me the difference between this NSN: 4940-01-209-8824 and this NSN: 4940-01-209-8825 and tell me how I can tell which type of box I have? I know it works with the 1028A1 and 1031 chassis. I'm just trying to understand what exactly makes them unique enough to get different NSNs.

Thanks.

 

[emmado22]

Sometimes, not much of anything other than different manufacturers with a slightly different product.

 

[lavarok]

24 is designated "ENG" and the 25 is designated "ORD". Other than that, the description is the same so I'd guess the difference is what tools and supplies they are outfitted with.

 

[emmado22]

Thats another very possible possibility!

 

[NDT]

The ORD SECM has the horizontal bracket for the 250 cubic foot welding gas cylinder above the generator.

 

[leeh725]

Nsn

I will check on that when I get home from work.

I figured it had to be quite a difference since the contract price was substantially different.

Obviously, I plan on using this vehicle on the farm. So knowing what exactly I have will help me get the right TM. I hope to have it in service by next week.

The more I can learn about this bed, the better.

 

[leeh725]

Rack

I also see some of these SECM beds with racks on the top. I wonder if that is indicative on the NSN description or something that was added after DoD acquisition.

 

[jets1959]

The EOD version doesn't have the generator set, air compressor or the hole in the floor. The TM for the SECM covers all models.

 

[leeh725]

Next obvious question: What is the correct operator's guide part number for these shop sets? I didn't see anything in the resource section that covers the body. I only see information on the chassis.

 

[jets1959]

Maintenance manual is TM 9-4940-562-23P and operators manual is TM 9-4940-562-13. Got mine on an online auction site from a guy out of FL.

 

[lavarok]

I was right, per the TM 9-4940-562-13:

"The Type I, NSN 2320-01-209-8823, is a self contained
maintenance shop set composed of a basic shop set, power take-off, and
alternator that will be used by units which will identify and provide their peculiar tool
loads to the shop set. The Type II, NSN 4940-01-209-8824, is a Type I shop set plus a
tool load peculiar to the Engineer unit that will enable the operator to perform on-site
maintenance and repair of engineer equipment in the field. The Type III, NSN 4940-
01-209-8825, is a Type I shop set plus a tool load peculiar to the Ordnance unit that
will enable the operator to perform on-site maintenance and repair of ordnance
equipment in the field. The EOD model, NSN 4940-01-359-5085, is a Type I shop set
which will be used by Explosive Ordnance Disposed (EOD)"

 

[leeh725]

Thanks to each of you for your input and help on this.

This isn't the prettiest equipment I've ever owned. But I think it will certainly prove to be one of the more useful pieces of equipment I have. I have a similar setup on an F-350 flatbed truck. The only problem is that all my stuff is exposed and can be easily stolen. (As demonstrated by a trip to town where my generator was stolen.)